Most of these will be from the campaigns, since the Norse don't have more than one hero type in random-map games.
“Brokk is Eitri's elder brother. Along with Eitri, he is one of the two blacksmiths of Midgard...Brokk
“Eitri is a Dwarf and the younger brother of Brokk. He and his brother show the heroes the way...Eitri